Method for interrupting conduction paths within the heart
First Claim
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1. A method of creating an arrhythmia in the heart of a patient by ablative treatment of the atrium of the heart comprising:
- (a) providing a surgical instrument having a handle and a first electrode affixed to the handle;
(b) providing a second electrode;
(c) providing a power source in electrical connection with the first and second electrodes;
(d) performing an open-heart surgical procedure in which a first electrode is placed proximal to a first portion of a wall of the atrium and the second electrode is placed proximal to a second portion of the wall of the atrium such that one of the first and second electrodes is on the inside of the atrium and the other of the first and second electrodes is on the outside of the atrium;
(e) transferring energy from the power source to the first electrode to cause a transmural lesion to form in the wall of the atrium between the first and second electrodes.
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Abstract
A method for making transmural lesions in one or more walls of the atria of the heart in open-heart surgery. The lesion blocks electrical impulses in a direction crosswise to the lesion. The method uses a probe having a handle (1), a closed electrode (2) at an end of the probe, a relatively rigid member (5) of physiologically acceptable plastic connecting the probe and the electrode, and means (6, 7) for coupling the probe to an RF power source.
382 Citations
29 Claims
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1. A method of creating an arrhythmia in the heart of a patient by ablative treatment of the atrium of the heart comprising:
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(a) providing a surgical instrument having a handle and a first electrode affixed to the handle; (b) providing a second electrode; (c) providing a power source in electrical connection with the first and second electrodes; (d) performing an open-heart surgical procedure in which a first electrode is placed proximal to a first portion of a wall of the atrium and the second electrode is placed proximal to a second portion of the wall of the atrium such that one of the first and second electrodes is on the inside of the atrium and the other of the first and second electrodes is on the outside of the atrium; (e) transferring energy from the power source to the first electrode to cause a transmural lesion to form in the wall of the atrium between the first and second electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of treating an arrythmia in the heart of a patient by ablative treatment of the atrium of the heart comprising:
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(a) providing a surgical instrument having a handle with a first electrode affixed to the handle and a fluid outlet; (b) providing a second electrode; (c) providing a power source in electrical connection with the first and second electrodes; (d) performing an open-heart surgical procedure in which the first electrode is placed proximal to a first portion of a wall of the atrium and the second electrode is placed proximal to a second portion of the wall of the atrium such that one of the first and second electrodes is on the inside of the atrium and the other of the first and second electrodes is on the outside of the atrium; (e) transferring a physiologically acceptable liquid to the fluid outlet; (f) transferring energy from the power source to the first electrode to cause a transmural lesion to form in the wall of the atrium between the first and second electrodes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification